Only install Greenlight

[debuglevel]

I don't know if this feature request is actually in scope of bbb-install, as it is rather out-of-the-box one-shot-tool. But as sometimes it is mentioned that Greenlight could (or should?) be deployed on a separate machine, bbb-install.sh could support this setup.

Right now, it is "(also) install Greenlight along with BigBlueButton" and the -g option without -v does not do anything.

But I'd also understand if this is out of scope and rather a case where advanced deployment techniques like Ansible should be used :)

[antobinary]

advanced deployment techniques like Ansible should be used

I'd vote for this -- keeping the focus on trying to accomplish a reliable (basic) installation. From what I understand the intention is to keep bbb-install*.sh idemopotent - could re-run the command with -v repeatedly without negative consequences, and use Ansible or something similar for customizations (/etc/bigbluebutton/*). I am not super familiar with Greenlight though, I don't have observations if re-running bbb-install*.sh with -g after you've customized Greenlight leads to lost customizations.